Vehicle Condition Setting Is Not Possible

CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect connectors of combination meter, BCM, and AV and NAVI control unit.
3. Check continuity AV and NAVI control unit harness connector B29 terminals 33 (LG), 32 (PU) and BCM harness connector M4 terminal 31 (LG), 30 (PU).
  
  Fig 1: Identifying Connector B29 Terminals 33 (LG), 32 (PU) Graph
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 2: Checking Continuity AV And Navi Control Unit Harness Connector B29
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check continuity between AV and NAVI control unit harness connector B29 terminals 33 (LG), 32 (PU) and ground.
  
  Fig 3: Checking Continuity Between AV And NAVI Control Unit Harness Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 2.
2. NG: Repair harness or connector.
CHECK COMMUNICATION SIGNAL (AV-ME)
1. Connect connectors of combination meter, BCM, and AV and NAVI control unit.
2. Turn ignition switch ON and display "VEHICLE ELECTRONIC SYSTEMS" screen.
3. Check voltage signal between AV and NAVI control unit harness connector B29 terminal 33 (LG) and ground.
  
  Fig 4: Voltage Signal Between AV And Navi Control Unit Harness Connector B29 Terminal 33 (LG) Graph
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 5: Checking Communication Signal (AV-ME) Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: GO TO 3.
2. NG: Replace AV and NAVI control unit.
CHECK COMMUNICATION SIGNAL (ME-AV)
1. Turn ignition switch ON and display "VEHICLE ELECTRONIC SYSTEMS" screen.
2. Check voltage signal between AV and NAVI control unit harness connector B29 terminal 32 (PU) and ground.
  
  Fig 6: Identifying Voltage Signal Between AV And Navi Control Unit Graph
  Courtesy of NISSAN MOTOR CO., U.S.A.
  
  Fig 7: Checking Communication Signal (ME-AV) Connector
  Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
1. OK: Replace AV and NAVI control unit.
2. NG: Replace BCM.